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Replace a string in shell script using a variable
...x> echo X123456789X | sed "s/123456789/${replace}/"
X987654321X
pax> _
Just be careful to ensure that ${replace} doesn't have any characters of significance to sed (like / for instance) since it will cause confusion unless escaped. But if, as you say, you're replacing one number with another...
SVN needs-lock 设置强制只读属性（官方资料） - 更多技术 - 清泛网 - 专注...
...jar.$ \.odt.$ \.pdf.$ \.ppt.$ \.swf.$ \.vsd.$ \.xls.$ \.zip.[ DISCUZ_CODE_0 ]quot; %TEMP%\tempfile%2`) do (
%SVNLOOK% propget -t %2 %1 svn:needs-lock %%i 1> nul 2> nul
if ERRORLEVEL 1 (
echo commit denied, binary files must have property svn:needs-lock >&2
type %TEMP%\tempf...
How to reset Django admin password?
...
python manage.py changepassword <user_name>
see docs
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Creating an instance using the class name and calling constructor
...ption {
// Get class name as string.
String myClassName = Base.class.getName();
// Create class of type Base.
Class<?> myClass = Class.forName(myClassName);
// Create constructor call with argument types.
Constructor<?> ctr = myClass.getCo...
SQLite: How do I save the result of a query as a CSV file?
...matically.
import pandas as pd
import sqlite3
conn = sqlite3.connect('your_cool_database.sqlite')
df = pd.read_sql('SELECT * from orders', conn)
df.to_csv('orders.csv', index = False)
You can customize the query to only export part of the sqlite table to the CSV file.
You can also run a single co...
SQL Server 2008 can't login with newly created user
...! Then i logged in only to say ... THANK YOU
– Answer_42
Jan 10 '13 at 19:29
17
The blame should ...
Are inline virtual functions really a non-sense?
...
void f(const Base& lhs, const Base& rhs) { } ------In implementation of the function, you never know what lhs and rhs points to until runtime.
– Baiyan Huang
Aug 11 '10 at 23:44
...
Creating a constant Dictionary in C#
...s SomeClass
{
static readonly ReadOnlyDictionary<string,int> SOME_MAPPING
= new ReadOnlyDictionary<string,int>(
new Dictionary<string,int>()
{
{ "One", 1 },
{ "Two", 2 }
}
)
}
...
Getting the folder name from a path
...red Aug 14 '17 at 18:11
susieloo_susieloo_
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...
C# constructor execution order
...re executed for the most-derived type
Constructor chaining works out which base class constructor is going to be called
The base class is initialized (recurse all of this :)
The constructor bodies in the chain in this class are executed (note that there can be more than one if they're chained with F...